Home / 110,222.20-165,041.70-86,699.80

Finding the Fourth Proportional to 110,222.20, 165,041.70 and 86,699.80

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Solution

The fourth proportional to 110,222.20, 165,041.70 and 86,699.80 is: 129,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,222.20 : 165,041.70 = 86,699.80 : x
  2. Step 2: Convert to fraction form
    110,222.20/165,041.70 = 86,699.80/x
  3. Step 3: Cross multiply
    110,222.20x = 165,041.70 × 86,699.80
  4. Step 4: Simplify right side
    110,222.20x = 14,309,082,381.66
  5. Step 5: Solve for x
    x = 14,309,082,381.66/110,222.20
  6. Step 6: Final answer
    x = 129,820.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.